Pocket One Pen Holder Quiver, Pen Holder For Notebooks, Pen Sleeve For Notebooks 5.5" - 6.5" Tall (14 cm - 16.5 cm) (Black Leather) CAPACITY: Holds 1 thin body, standard body or wide body pen COMPATIBILITY: Works with nearly all standard size small/pocket hardcover notebooks and softcover notebooks (soft cover adapter required see here: https://www.amazon.com/dp/B071PF6DMS) such as Moleskine notebooks, AmazonBasics & Amazon Gear Classic Notebooks, Rhodia webnotebooks, Leuchtturm1917 notebooks, Bullet Journal, Code & Quill notebooks, Ink + Volt notebooks, TOPS Idea Collective Journal, Lemome Classic notebooks, BookFactory Journal, Blank N' Red notebooks & more. DIMENSIONS: Fits notebooks between 5.5 inches - 6.5 inches tall (14 centimeters - 16.5 centimeters) LIFESPAN: Designed to last 5+ years to be used on notebook after notebook. REUSABLE: No adhesives required means you can use your Quiver on notebook after notebook for years to come. Simply slide your Quiver off the front cover of one notebook & slide it right onto the other.